Since I only needed one reference picture, this one was pretty easy despite all the detail that went into it.

After earning her cutie-mark, Pinkie Pie decides that she wants to go into the world to fulfill her dreams. Hugging and kissing her family goodbye, she sets off on her journey. Upon arriving in Ponyville, she runs into Sugarcube Corner. After the Cakes teach her the basics of baking goods and sweets, Pinkie know's that she has discovered her destiny.